Did you find this page useful?


Return to joezgarage.com




Want even more PCB trace calculation options?
Check out these cool calculators:
ANSI PCB Trace Width Calculator
Trace Width Calculator #2
Trace Width Calculator #3




















PCB Trace Amperage Chart

The following ratings are based on 2 OZ per square foot of copper and an ambient temperature of  90 degrees F (32 deg. C)
Acceptable temperature rise:  50 degrees F  (10 deg. C) Trace width thickness INTERNAL LAYER MAX AMPERAGE EXTERNAL LAYER (open air)

Resistance per inch 0.005" (5 mils)  0.020 (20 mils) 1.350 amps 5.401 amps 0.02002 ohms 0.0178 ohms 0.0535 ohms .602 amps (602ma)
0.050 (50 mils)  .811 amps (811ma)  1.616 amps (1616ma)  0.0268 ohms  0.010" (10 mils)  .360 amps (360ma) 1.013 amps (1013ma)
 2.578 amps  2.124 amps  1.0025 amps 3.387 amps 0.00892 ohms 0.01338 ohms 0.015 (15 mils) 0.030 (30 mils)4.777 amps 1.966 amps
2.248 amps  0.060 (60 mils) .00446 ohms  0.070 (70 mils) 2.517 amps 5.991 amps.00382 ohms .080 (80 mils) 2.777 amps 6.555 amps
.003346 ohms  .100 (100 mils) 3.272 amps 7.617 amps .00939 ohms  0.125 (125 mils) 1/8" .002141 ohms 8.852 amps   3.855 amps
.250 (250 mils) 1/4" 6.415 amps  14.1154 amps  .00107 ohms .500 (500 mils) 1/2"  22.509 amps  .000535 ohms  10.676 amps



Circuit board design, microcontroller firmware, PCB layout, PCB Trace Calculator, Trace width calculator, PCB engineering, Electronic Engineering, Custom Electronics
Electronic Lighting, PLC's, Circuit Board Calculator
 1